Package g0501_0600.s0564_find_the_closest_palindrome

Class Solution

java.lang.Object
g0501_0600.s0564_find_the_closest_palindrome.Solution
public class Solution extends java.lang.Object
564 - Find the Closest Palindrome.

Hard

Given a string n representing an integer, return the closest integer (not including itself), which is a palindrome. If there is a tie, return the smaller one.

The closest is defined as the absolute difference minimized between two integers.

Example 1:

Input: n = “123”

Output: “121”

Example 2:

Input: n = “1”

Output: “0”

Explanation: 0 and 2 are the closest palindromes but we return the smallest which is 0.

Constraints:

  • 1 <= n.length <= 18
  • n consists of only digits.
  • n does not have leading zeros.
  • n is representing an integer in the range [1, 1018 - 1].

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    java.lang.String
    nearestPalindromic(java.lang.String n)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • nearestPalindromic

      public java.lang.String nearestPalindromic(java.lang.String n)